Analyzer Units - ABB EL6010 Operator's Manual

Analyzer Units

EL6010-Uras14
Infrared Analyzer Unit
EL6010-Magnos106
Oxygen Analyzer Unit
EL6010-Caldos17
Thermal Conductivity
Analyzer Unit
Design
Housing Purge
Calibration
42/24-30 EN Rev. 1
The EL6010-Uras14 infrared analyzer unit uses the NDIR (Non-Dispersive Infrared
Absorption) technique. It measures concentrations of one or two sample compo-
nents.
The EL6010-Magnos106 oxygen analyzer unit's measurement principle is based
on the specific paramagnetic behavior of oxygen.
The EL6010-Caldos17 thermal conductivity analyzer unit uses the different thermal
conductivity of individual gases. It measures the concentration of a sample com-
ponent in a binary gas mixture.
Each analyzer unit consists of the sensor and its associated electronics.
The analyzer unit is built according to the EN 50018 "Flame-proof Enclosure"
protection type. It is contained in a pressure-tight aluminum cylinder.
All gas connections are routed via flame barriers. The flame barriers and the pipe
threaded connections are made of 1.4571 steel.
The analyzer unit is connected to the control unit via data transmission and power
supply cables. The 12- and 3-conductor cables, each 3 meters in length, are
connected at the factory and are brought into the pressure-tight cylinder via
pressure-tight cable openings.
Housing protection type is IP 54 (O-ring seals required when mounted horizontally).
To protect the analyzer unit sensor electronics against the entry of an aggressive
atmosphere or corrosive sample gas components, a purge gas can flow through
the pressure-tight cylinder.
The purge gas enters and exits via two flame barriers which are open in the
interior of the pressure-tight cylinder.
In the EL6010-Magnos106 and EL6010-Caldos17 analyzer units the pressure-tight
cylinder purge gas outlet is internally joined to the purge gas outlet for the thermo-
stat housing. The thermostat housing purge gas inlet is open.
Note: The housing purge has no significance for the purposes of EN 50016
positive pressure containment.
Essentially the gas analyzer is calibrated manually. External control of calibration
is possible via the Modbus interface.
The EL6010-Uras14 infrared analyzer unit can be equipped with optional gas-filled
calibration cells that extensively eliminate reliance on test gases.
Because of its very low sensitivity drift, the EL6010-Magnos106 oxygen analyzer
unit routinely requires only a zero calibration, if the measuring range is larger than
0 to 5 Vol.-% O . Nitrogen or ambient air are used for this.
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EL6010 Gas Analyzer in Category 2G Operator's Manual 53